Machine



UNITED ysTATEs PATENT OEEIOE.

soLoMoNseRar, uoEsoUTI-I BosTON, MAssAoHUsETTs AssIGNoR To s. s. GRAYAND 1" l 1 js.*a.woonsw` I i l MACHINE FORPLANINGQLUMBER OUT or WIND.

O Specification formingpart of Letters Patent No. 11,582, dated `August22, 1854; Reissued April 1'?,`

1860, No. 945. O

To `all whom Z5 concern.:

Be it knownthat I, S. S. GRAY, of South Boston, in the county of Suffolkand State and useful Improvements in Planing-Machines, of which thefollowing]` isa full,I clear, and accurate description, reference beinghad to the annexed drawings, making part of this specification, inwhich- Figure l is a perspective View of a planing machine with myimprovements attached. Fig. 2 is a section through the cutter cylinderand the parts immediately connected therewith. F ig.` 3 is'a View Vofthe bar which prevents the board from being raised by the action of thecylinder cutters. Fig. 4 is a front view of the cutter head and cutter.Fig. 5 `a plan of the traveling bed with the clamps for securing thelumber.

Planing machines may be divided into two classes-those in whichpressureis applied to the plank, before and behind the cutter, and which reduceboards to a uniform thickness, and those which are calculated to planeout of wind, and in which consequently no pressure can be applied to theboard. In machines of the latter class, of which the Daniells planer isan instance, it has not been found practicable to make use of cylindercutters as these require that the board be held firmly upon its bed, orat least that it be prevented from rising therefrom; the necessity hastherefore existed in machines for planing out of wind, of using cutterswhich revolve horizontally across the board, the operation of which isvery slow.

The first part of my invention consists in a peculiar' construction ofcutter head for the purpose of more eectually turning and breaking theshavings,-the duty of the cap being performed by a portion of the cutterhead which is peculiarly formed for the purpose as will be hereaftermore fully eX- plained.

My second improvement consists ina peculiar form of clamp which isespecially applicable to planing machines of this class, by which boardswith inclined ends may be instantaneously and securely dogged or piecesof different lengths may be planed at the same time.

To enable others skilled in the art to make and use my invention I willproceed to describe the method which I have adopted of O carrying itout.

The general features, of the machine as they do not differ from those ofothers `of i. this class need not be here described. of Massachusetts7have invented certain new A is thecut'ter head, of theformgrepresecuredto it by the screws working in slots in the planingirons. Immediately back of the cutting edge of the planing iron thecutter head is made concave as seen at 0 Fig. 2 for the purpose ofbending over and breaking the shaving. The cutter head itself is `thusmade to form the cap of the iron, itsconcave form immediately behind thecutting edge adapting it peculiarly to this purpose.

The cutter head is'raised and lowered in the usual manner in its frame Bby means of the screw C and is clamped rmly to its ways by the thumbnuts f. f

E is the clamp seen in plan in Fig. 5. The body of the clamp is pivotedat its center Z upon the end of the screw F which works in the nut g andis operated` by the hand wheel G. The dogs 7L are pivoted to the body ofthe `clamp and may be secured by `means of the thumb nuts 7c in anyposition required for the purpose of holding pieces of different lengthsor of dogging boards with oblique ends. One end of the board beingsecured to the movable dog I-I the dogs L are made to bear upon theother end of it the thumb nuts 70 are then tightended and the clamp`which is forced up by turning the screw G adjusts `itself by swivellingupon the point d until both its Vdogs have an equal bearing upon the endof the board. Both t-he dog I-I, and the clamp E are secured` to themovable bed I which carries the lumber through the machine.

For the purpose of holding the dog H securely to the bed of the machine,and also to enable itto be readily and quickly moved to accommodate itto the different lengths of boards to be planed I make useV .y the bedof the machine, the body of the clamp being pivoted at d and forced upby the screw F or its "equivalent, thedogs h being adjustable therein inthe manner and 15 for the purpose set forth.

8. I claimthe Within described method of securing the dog H tothe bed ofthe machine7 by means of the teeth or cogs Z and the mortises in theside pieces m for the 20 purpose set forth.

SOLOMON S. GRAY.

Witnesses:

SAM. COOPER, JOHN S. GLOW.

[FIRST PRINTED 1913.]

